Mark the correct statements about the structural features of alkenes and alkynes. *         A- Free rotation is not possible around a double or triple bond.         B- A triple bond is shorter and stronger than a double bond.         C- A pi-bond can only form by overlap of p-orbitals on adjacent atoms if these atoms are from the same element.

Q: Geometric isomers occur in some alkenes. These isomers are called cis-trans isomers because of the…

A: The cis-tans isomerization is a type of stereoisomerism. The molecule which contains a double bond…

Q: The empirical formula of X is C3H5CIO If X is an optically alkanal, give the structural formula of…

A: Molecular formula = C3H5ClO. DBE = 3- (5+1/2)+1 = 4-3= 1. Therefore the compound is having a double…

Q: explain structural isomerism in aliphatic alkanes and geometric isomerism in alkenes. Describe…

A: Structural isomers or constitutional isomers are the isomers which have same molecular formula but…

Q: Draw structural formulas for these alkenes. Q.)2,3-Dimethyl-2-butene

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Q: Which of the following is not a characteristic of the structure of benzene? O carbon atoms have…

A: In benzene, carbon atoms  have trigonal planar geometry with bond angle 120°C. Carbon atoms  are sp2…

Q: 1. The hybridization of the functional carbons in alkynes is sp2 while those of alkenes is sp. True…

A: (1) The hybridization of the functional carbons in alkynes is sp while those of alkenes is sp2 .…

Q: Below are the structural formulae for isomers of butene. What type of isomerism is exemplified by…

A: Isomers are the compound having same molecular formula but different arrangements of atoms. It can…

Q: Describe what is meant by a cis-isomer of an alkene.

A: Isomers are compounds with same molecular formula but has different arrangement of atom. Isomers are…

Q: Add the appropriate number of hydrogen atoms to the alkynes and give their IUPAC (systematic) names.…

A: The given compounds are : 1). H3C-C≡C-CH(CH3)2  2). H3C-CH2-CH(CH3)-CH2-C≡C-H  IUAPC names = ?

Q: Find the incorrect statement about alkynes. *       A- Alkynes do not show isomerism.       B- The…

A: Answer - The incorrect statement is (c) A pi-bond in an alkyne is formed by sideways overlap of p…

Q: During cracking, (i) all saturated hydrocarbons are converted to unsaturated hydrocarbons, and (ii)…

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Q: Write a balanced equation for each of the following:(a) An addition reaction between 2-butene and…

A: a). Addition reaction between 2-butene and Cl2

Q: Which of the following is the characteristic feature of all alkynes? a. the presence of one or more…

A: The compounds of carbon and hydrogen are known as a hydrocarbon. The hydrocarbon which contains only…

Q: Which of the following statements is NOT true for the general properties of alkenes and alkynes? A…

A: Alkenes :-  Hydrocarbons having atleast one C=C double bond are called alkenes  Alkenes have the…

Q: Draw the structure of the following alkenes. Some of these compounds can show isomerism, and some…

A: For naming select the longest hydrocarbon chain containing functional groups and double and triple…

Q: Describe geometric isomerism. With the aid of diagrams use the molecular formula C5H10 to explain…

A:

Q: Geometric isomers occur in some alkenes. These isomers are called cis-trans isomers because of the…

A: Given,  The pairs that are cis-trans isomers from the given pairs of alkenes are:

Q: What are the bond angles and molecular geometry around the double bonded carbons of trans-2-butene?…

A: 2- butene exist in two forms: Cis form and trans form

Q: 2. Using structural diagrams to explain the synthesis of butyl ethanoate from an alkane and an…

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Q: Which of the following alkanes will have the lowest boiling point A. n- pentane B. isopentane C.…

A: A. Higher is the molecular weight of alkane, higher will be the intermolecular force (London…

Q: Draw structural formulas for these alkenes. Q.) 3-Cyclopropyl-1-propene

A: The structure of a molecule gives the representation of atoms in space. From the structure, its…

Q: Draw structural formulas for these alkenes. Q.) (E)-2,6-Dimethyl-2,6-octadiene

A: Given Draw structural formulas for these alkenes. Q.) (E)-2,6-Dimethyl-2,6-octadiene

Q: Write structural formulas for all organic compounds. State the type of reaction. Complete and…

A: When two or more than two different species combine together and result in the formation of a new…

Q: In the IUPAC system, acid halides are identified by the name ending A. -yl halide B. -oic halide O…

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Q: Draw structural formulas for these alkenes. Q.) Tetrachloroethylene

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Q: Benzene’s unusual properties is not limited to hydrogenation. Which one is true about reaction of…

A: benzene reacts with Br2 to give bromobenzene product.

Q: Which of the following statements is incorrect concerning addition reactions of alkenes? (X =…

A: The halogens X2 chlorine and bromine add rapidly to a wide variety of alkenes without inducing the…

Q: What is not correct about alkanes a. They have relatively high boiling points b. They have…

A: Alkanes are the hydrocarbons that is contai s hydrogen and carbon which are bonded by single…

Q: The addition of HCl to these compounds will follow Markovnikov’s rule EXCEPT a.1-pentene.…

A: Alkene gives an electrophilic addition reaction with hydrogen halide to form an alkyl halide.

Q: Draw structural formulas for these alkenes. Q.)(Z)-1-Chloropropene

A: In Z alkenes, the similar groups are present on the same side whereas in E alkene, the similar…

Q: A pair of electrons(s) in the s bond spreads out into empty p orbital, stabilizing…

A: The displacement of electrons occurs in the organic compounds due to the attacking reagents that…

Q: Which of the following straight-chain alkanes has the highest boiling point? A) octane B) hexane C)…

A: The boiling point of a hydrocarbon depends upon the molar mass and structure of the compound. The…

Q: Aldehydes and ketones can be named in a systematic way by counting the number of carbon atoms…

A: The Structural formula of a compound shows how the atoms are arranged in a molecule and, in…

Q: Which statements about alkenes and alkanes of corresponding chain lengths are true? (I) Alkenes…

A: The strength of bonds in molecules is a major factor in determining the melting and Boiling points…

Q: 5. The general formula of alkene is C,H,» (a) The relative molecular mass of an alkene X is 70.0.…

A: Given: Relative molecular mass of alkene = 70.0

Q: Which is a unique catalyst for the reaction of alkanes and cycloalkanes? A irradiation (B platinum…

A: Alkene can be converted into cycloalkane by the addition reaction of both of the carbon atoms of the…

Q: You carry out an experiment to determine whether the organic compounds below are saturated or…

A: Bromine water is used to test the presence of unsaturation in an organic compound. Bromine water is…

Q: 1) Complete the table to show whether the alkenes exhibit E-Z isomerism. 2) Once finished, try and…

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Q: Draw structural formulas for these alkenes. Q.)Cyclopropylethene

A: Ethene is the molecule which contains two carbon atom which connected to each other by double bond.…

Q: What descriptions are appropriate for the alkene and alkyne in this molecule? i.Internal or…

A: Considering the following molecule all the descriptions are below

Q: This class of organic compounds is unsaturated with one or more benzene-like rings. Alkynes Alkenes…

A: The unsaturated hydrocarbons are those which posses one or more double bonds. Ring compounds are…

Q: What doesn't happen during cracking? * Aliphatic alkanes are converted into cyclic alkynes Straight…

A: Cracking is the process used in breaking of large hydrocarbon molecules into small hydrocarbons.…

Q: Which piece of information do you need to determine whether a molecule is an alkyne or an alkene? A.…

A:

Q: Aldehydes and ketones can be named in a systematic way by counting the number of carbon atoms…

A: Aldehydes and ketones are organic compounds having carbonyl group. In ketone, carbonyl carbon is…

Q: CH,CH—СH, + HI —>

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Q: What is the difference between the hybridization of carbon atoms’ valence orbitals in saturated and…

A: Saturated hydrocarbons which have only single bond between atoms and Unsaturated hydrocarbon having…

Q: State whether the statements are true or false. 1. Unsaturated hydrocarbons must contain at least…

A: 1. True, unsaturated hydrocarbons must contain at least one carbon-carbon double triple bond.…

Q: Which statement of the following is false? A. Cyclohexene has the general formula CH20-2 B. Alkenes…

A: Only option D is False and option A,B C,E are true

Q: Some alkenes have cis-trans isomers because a. the carbon atoms in the double bond are free to…

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Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.